Merck
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G9145

Sigma-Aldrich

[Leu15]-Gastrin I human

≥95% (HPLC)

Synonym(s):
LHG-17, [18-Pyroglutamic acid, 32-leucine]-Big gastrin I-(18-34)-peptide amide, human, [Leu15]-Gastrin I, human, [Leucine15]-Gastrin I heptadecapeptide, [Leucine15]-Little gastrin I, [Leu15]-HG-17, [15-Leucine]-Gastrin I, human heptadecapeptide
Empirical Formula (Hill Notation):
C98H126N20O31
CAS Number:
Molecular Weight:
2080.16
Beilstein:
5227423
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.32

Quality Level

biological source

human

assay

≥95% (HPLC)

form

powder

technique(s)

cell culture | mammalian: suitable

UniProt accession no.

storage temp.

−20°C

SMILES string

CC(C)CC(NC(=O)C(Cc1c[nH]c2ccccc12)NC(=O)C3CCCN3C(=O)CNC(=O)C4CCC(=O)N4)C(=O)NC(CCC(O)=O)C(=O)NC(CCC(O)=O)C(=O)NC(CCC(O)=O)C(=O)NC(CCC(O)=O)C(=O)NC(CCC(O)=O)C(=O)NC(C)C(=O)NC(Cc5ccc(O)cc5)C(=O)NCC(=O)NC(Cc6c[nH]c7ccccc67)C(=O)NC(CC(C)C)C(=O)NC(CC(O)=O)C(=O)NC(Cc8ccccc8)C(N)=O

InChI

1S/C98H126N20O31/c1-49(2)38-68(115-96(147)72(43-55-46-101-60-19-12-10-17-58(55)60)117-98(149)74-20-13-37-118(74)77(122)48-103-86(137)61-25-31-75(120)105-61)93(144)111-66(30-36-82(131)132)92(143)110-65(29-35-81(129)130)91(142)109-64(28-34-80(127)128)90(141)108-63(27-33-79(125)126)89(140)107-62(26-32-78(123)124)88(139)104-51(5)85(136)113-70(41-53-21-23-56(119)24-22-53)87(138)102-47-76(121)106-71(42-54-45-100-59-18-11-9-16-57(54)59)95(146)114-69(39-50(3)4)94(145)116-73(44-83(133)134)97(148)112-67(84(99)135)40-52-14-7-6-8-15-52/h6-12,14-19,21-24,45-46,49-51,61-74,100-101,119H,13,20,25-44,47-48H2,1-5H3,(H2,99,135)(H,102,138)(H,103,137)(H,104,139)(H,105,120)(H,106,121)(H,107,140)(H,108,141)(H,109,142)(H,110,143)(H,111,144)(H,112,148)(H,113,136)(H,114,146)(H,115,147)(H,116,145)(H,117,149)(H,123,124)(H,125,126)(H,127,128)(H,129,130)(H,131,132)(H,133,134)

InChI key

CMVMLPDUAGUTOC-UHFFFAOYSA-N

Gene Information

human ... GAST(2520)

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Amino Acid Sequence

Glp-Gly-Pro-Trp-Leu-Glu-Glu-Glu-Glu-Glu-Ala-Tyr-Gly-Trp-Leu-Asp-Phe-NH2

General description

GAST gene encodes for the protein [Leu15]-Gastrin I in human. In human chromosome, the gene GAST is localized on 17q21.2. G cells in the stomach antrum produces the precursor of [Leu15]-Gastrin I, progastrin. Progastrin undergoes cleavage and processing to yield gastrin, which is trophic for the entire gastrointestinal epithelium. Gastrin is essential for the growth of the digestive system and stimulates the production of gastric acid by parietal cells. Gastrin exerts its function through G-protein-coupled receptor called the cholecystokinin (CCK) or CCK-B receptor (CCK-BR). Gastrin release is stimulated by food, especially protein diet and is inhibited by very low pH. Atrophic gastritis, a Helicobacter pylori infection and long-term administration of proton pump inhibitors infection may cause overexpression of gastrin. Gastric adenocarcinoma show high levels of gastrin.

Application

Gastrin has been used:
  • as a medium supplement establish enteroid cultures
  • as a supplement to standard Dulbecco′s Modified Eagle Medium (DMEM) culture medium, human minigut medium to establish the growth of crypts.

Biochem/physiol Actions

Gastrin I analog with full biological activity and improved stability in aqueous solutions. Leu15 replaces Met15, that is readily oxidized resulting in loss of biological activity.

Other Notes

Lyophilized from 0.1% TFA in H2O

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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